Both Sweden and Finland have signaled they may join NATO after both countries have remained historically neutral. Russian leaders vowed to retaliate “without delay.” WATCH THE FULL EPISODE OF 'WORLD NEWS TONIGHT': https://bit.ly/3uHCDO5 WATCH OTHER FULL EPISODES OF WORLD NEWS TONIGHT: http://abc.go.com/shows/world-news-tonight WATCH WORLD NEWS TONIGHT ON HULU: https://bit.ly/3iQLwPp #finland #nato #russia #sweden